JPS64208A - Production of fine gold particles - Google Patents

Production of fine gold particles

Info

Publication number
JPS64208A
JPS64208A JP15477487A JP15477487A JPS64208A JP S64208 A JPS64208 A JP S64208A JP 15477487 A JP15477487 A JP 15477487A JP 15477487 A JP15477487 A JP 15477487A JP S64208 A JPS64208 A JP S64208A
Authority
JP
Japan
Prior art keywords
soln
particle size
iodide
alkali hydroxide
gold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15477487A
Other languages
Japanese (ja)
Other versions
JPH01208A (en
Inventor
Mamoru Hirako
Nobuyasu Ezawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tanaka Kikinzoku Kogyo KK
Original Assignee
Tanaka Kikinzoku Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tanaka Kikinzoku Kogyo KK filed Critical Tanaka Kikinzoku Kogyo KK
Priority to JP15477487A priority Critical patent/JPS64208A/en
Publication of JPH01208A publication Critical patent/JPH01208A/en
Publication of JPS64208A publication Critical patent/JPS64208A/en
Pending legal-status Critical Current

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  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

PURPOSE: To produce singly dispersed fine gold particles having a narrow particle size distribution by adding a cationic surfactant to an aq. soln. contg. iodoauric acid ions and by further adding alkali hydroxide to the aq. soln. to decompose gold iodide.
CONSTITUTION: A cationic surfactant such as C8H17N(CH3)3Br is added to an aq. soln. contg. iodoauric acid ions prepd. by dissolving gold iodide in an aq. potassium iodide soln. or by other method. Alkali hydroxide is then added to the aq. soln. to decompose gold iodide. The proper concn. of the alkali hydroxide is about 0.1W6N. The pref. reaction temp. is about 20W70°C and the particle size of formed particles can be controlled by changing the temp. condition. The reaction is terminated at ≥about 12.5, preferably ≥about 13 pH. Thus, single dispersed fine gold particles of ≤several μm particle size are obtd.
COPYRIGHT: (C)1989,JPO&Japio
JP15477487A 1987-06-22 1987-06-22 Production of fine gold particles Pending JPS64208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15477487A JPS64208A (en) 1987-06-22 1987-06-22 Production of fine gold particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15477487A JPS64208A (en) 1987-06-22 1987-06-22 Production of fine gold particles

Publications (2)

Publication Number Publication Date
JPH01208A JPH01208A (en) 1989-01-05
JPS64208A true JPS64208A (en) 1989-01-05

Family

ID=15591602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15477487A Pending JPS64208A (en) 1987-06-22 1987-06-22 Production of fine gold particles

Country Status (1)

Country Link
JP (1) JPS64208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7611849B2 (en) * 2003-05-27 2009-11-03 Point Care Technologies Enhanced cellular assay method for use in flow cytometry or similar instruments using optically resonant particles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7611849B2 (en) * 2003-05-27 2009-11-03 Point Care Technologies Enhanced cellular assay method for use in flow cytometry or similar instruments using optically resonant particles

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